Lauren, who has been a writer on the show since its beginning, is reportedly dating Samira Wiley, who plays inmate Poussay.
OITNB centres about Piper Chapman, who goes to prison on an old drugs charge. Although engaged to boyfriend Larry, Piper bumps into her ex girlfriend Alex while inside and they rekindle their relationship.
Opening up about the 'terrifying' likeliness of Piper's situation and her own, Lauren said: "As we started to shape our characters and debate fictional Piper's 'true' sexuality that first season, we engaged in long discussions about sex, gender and our own experiences.
"I was finally forced to consider a question that had never, ever occurred to me before: Holy sh*t, am I gay?
"While it certainly would have been disorienting to begin to question my sexuality after three decades of knowing myself, it was particularly blinding because I'd gotten married only a few months before."
US reports suggest that Lauren filed for divorce this week from husband Steve Basilone and, despite the circumstances, the split is said to be 'amicable'.
Now Lauren is being linked to Samira, after they attended the Emmys together.